Device for cleaning oil-wells.



I. A. FLANEGIN. DEVICE FOR CLEANING OIL WELLS.

APPLICATION FILED SEPT. 30, 1907.

Patented Oct. 13, 1908.

2 HHEETS8HEET 1.

avwentoz wihuom Jam w F. A. FLANBGIN.

DEVICE FOB CLEANING OIL WELLS. APPLICATION FILED SEPT. 30, 1907.

Patented Oct. 13,1908.

8 SHEETS-SHEET 2.

Minas paraflin, become; hardened so that the bailer matic pressure,- against H v cavity-with suchaforcefas'ftb .dislodfiethe Qfl t d "noes nearly to the bottom of tubular reservoir section's the oil, such as floating ,hard'en'ed sand at 'the bottom FRANCIS A. FLANEGIN, Oi OHAUTAUQUA, NEW YORK.

mrvxci: roa cmmmo OIL-WELLS.

Specification of Letter! Patent.

m Oct. 13, 1 00s.

Applloiflon an Ieptembor so, 1907. .Berlal n. mm.

To all whom may concern:

Be it known that I, FnANcm A. FLANrom, a citizen of the United States, and resident of Chautauqua, in the county of Chautauqua and State of New'York, have invented new and useful v Cleaning Oilells', of which the following, taken in connection with the accompanying drawing, is a full, clear,- and exact description. Y

The invention relates-to devices for clean ing or renewing oil wells. It was at first supposed that the deposits of paraflin in the interstices of the rock in the shot' cavity or oil producing portion of the rock was the cause of sto page of oilflow. Experience has shown, owever, that there are harder substances inamajority of the wells than in the parafiin and other deposits-than from sand and other foras a thin formation" in some instances seems e' substances as we 0 gypsum, wh ch v to coat-the entire wall of the shot cavity with a'thin formation which is exceedingly hardand upon which heat has 've little. or noinfluen'ceg It is also found t at thepocket at the bottom of thewell,. which pocket usually extends below the shotcavlty, becomesjfilledf with a deposit of sand and other foreign substances, which, bein coated or saturated-with the-gypsum. an

or sand pump has no effect upon them. Theo provide means for ischar :hot' fluid, preferably under, bothhg'drauhc; and ;pne u- 't e walls of theshot hardened coating; the'lluidalsobin dissolves the paraflin fau'dother which are melted by heat; b0

a nozzle .for' the lower end :of means ofwhich the entire hydro-pneumatic;

force of the hot fluid maybe down into'the ket at the w n, therebyl' "or "that it can be withdmw {the tional view-of un o Improvements in Devices for ject sub-e resent. invention is .to.

wiew- .of .the the I a M- -the upper closure cap. Fig. 6 is'a crosswise sectional view gfthe lower end of the up r closure cap, showing a hexagonal form or a wrench. Fig. 7 s a crosswise sectional view of the lower closure, cap for valvepiece; and Fig. 8 is a vertical sectional viewof said valve end of the tu ular Fig. 9 is a perspective view of the valve tube at the lower end of the cleaning tube; Fig. 10 is a per,- s ective view of a nozzle for'directin the uid toward the bottom of the well. Fig. 11 is a nozzle for directingthe fluid upward from below, as for'example,:where ockets are blown out or have obstructions t erein, upon which the force of the fluid must come from the lower side. Fi 12 is a vertical View of the top portion 0 the cleaner, showing the filling tube removed and the screw plug inserted. I

S1milar numerals refer toxcorrespondin'g parts in the severalviews. I

The numeral 10 indicates thertjib'ular ervoir, in which the fluid 'ls plajeedgwhich tube preferably has a bail 1'- 1'a't ft 1 10. A venttube 16 is provided inplug 12 stone side ofv central pi e 14 which vent sew-es:

"'14. The

iece or closure for thelower within the tube 10. Centube-"is; controlled by va vs 17 and has a thread cut on its upper end for the attach- 18 while filli the tubular-reservoir 10 e lower end 0 tube pluglll' which-has a central opening within whlclithe tubular va'lve piece 20 1s shdably Q igd gd by means of a circular screw mounted, which plug 19 has a seat 21.for ji isms-n into the lower end of tugar; nozzle 23 being closed by a long nod which spammin valve. The spring the] valve mass on its inner side. A tug bular' nozzle-T23 havingsmall side vents, 24"

. catches 26 are attached to the outside of plug 19 and extend down below the same;

beveled rojection 27 is provided on the lower end of tubular valve piece 20 so that when rod presses against the bottomof the well the tubular valve. piece 20 will be pressed upward into the reservoir 10 until projection 27 is engaged by'sprin catches 2.6, thereby holding the tubular va lve piece in the raised position. In this raised position the openmgs 28 are raised above the valve seat 21 so that the fluid in reservoir- 10 mag escape through. said 0 enings 28 into tu lar valve piece 20 and t ence down into nozzle 23 and out of vents 24. y When it is desired to direct the fluid downward into the pocket. 29 at the bottom of the well a nozzle 30 is screwed into valve piece.20,- which nozzle '30 has the,perforations -31 in the lower end, which jets the water directly against the hardened sand in he pocket29 at the bottom of the well. When tward from the underside of some obstrucn so strikes into the l5 having'first 8 f 8 having 7 The hot uid isythen-forced under tion at the side of the cavity, the nozzle 32 is screwed into-valve piece '20. Nozzle 32 has the concaveior cit shaped .piece33 attachedto its lower end so that as the fluid directions atfan upward angle.-

' In operating this cleanei'Jit is inserted in' the top of the well-andsnpported there'- i'eady for fillin the reservoir 10 the pipe he gage been serewedonfiO ventipip ilfi.

infloresmoir i'thmugih P p :15 and tu 130 the bottom of will compress the air in the'cylindrical res ervoii'v 10 to .the upper portion leaving 'an' air space: at thev up end of the cylinder. thejdesi lpressi re 'is obtained the-tube 15;is -'removed an "a plug 35 is screwed into the; upper} end i of closure 12,

though this plug s "not, necessary except "-under extreme hihp' j H sincethe'pipe 14"exten near y to the bottom ervoir and eliquidextending up" abovelthe. same will preserve "the pressure about said pipe. It is apparentftha'tyin a tube -1 7cmorty to. fifty feet-Ion such as isintendedfor this purpose, the u d within the voir '10 will {have-"a-stro 'hydraulic pres sure; and alsothe. pneumatic 'ressure which 'illi'et'the fluid out upo n't e sides er the 01 zcavitywitl ggieat' force.- As soonas' the reservoir-is fiI ed t e w i w cl d andw-the' gage 18';removed,,after which the maybe-lowered to-thebottoin of the well'by meansof a suitable-f-line and reel.

1 soon as. ,the' tu ping. rod 25 strikes gth e bottom of the=wel is will push upward on valve un i cat e 264593 2 mi e va isf'desired to shoot the water l p-- avity it is forced out in alllar valve, spri the T gage 18,.

of. the res-- into said lar valve'm a raise 27, thereby allowin' the fluid to be forced out on the sides 0 the well. After the valve is raised' upon the catches 26 p the cleaner may be raised and lowered to different portions of the well and thus the entire lower'end of the well may be thoroughlycleaned and rinsed. I claim as new v 1. An oil well cleaner comprising a tubu' lar reservoir for fluid and means for filling the same, a valve in the lower end of said reservoir, and a tubular nozzle attached to I said valve having an extension to form a trip. 2. An oil well cleaner comprisin a tubular reservoir for fluid and means l r filling the same, a tubular valve in the low r end of said reservoir. and means"for openin the same, and a-nozzleattac'hed to said. va ve.

'3. An oil well cleaner com rising atubular reservoir and means for lling the same.

an egress valve at the lower end of said res-- the, same at ervoir' and means for o in the lower end of a .wel lf im a nozzle on said egress valve having a plurality of-openingsfor the fluid.

4. An oil well cleaner comprisin a tubu-' lar reservoir for fluid and means or filling the same, a tubular valve in the lower end of said reservoir, spring catcheson said reservoir to. hold said valve in the raised position, and anozzle attached to said valve.

a tubular reservoir for fluid and means or filling 5. An oil well cleanerfeonipris' the same, a tubular valve in. the lower en of said reservoir, a projection on said tubu- .catches on said reservoir to spring over said projection and hold said valve, and a nozzle on said valve having egress openings for said fluidQ lar reservoir, aninner tube extending nearly to the bottom of said reservoir, means for filling said reservoir'with fluid under pres-' sure through said inner tube and means for providing egress for said uid from said reservoir.

. 7-. An oil wellcleaner com ris'ing'a aim-- g the same,

lar reservoir and means for a tubular valve slidably mounted in the lower end qfsaid' reservoir having'a valveseat within'said reservoir, a nozzle screwed id tubular valve, sprin catches on rvoir to engage and he (1 said tubuposition.

. 6. An oil well cleaner comprising a tubu- 8; oilwell cleaner comprising a tubularreservoir 10 having a closure 12 at the upper" end, an innertube 14 extending nearly to the bottom'of said 'Jeservoir,-a vent tube 16 insaid. reservoir having'a valve 17 and pressure gage 1-8, and an egress valve 20 at the lowe'nen'd of said reservoir.

9. An oilwell cleaner comprising a tubu lar reservoir 10 having a closure 12 for its upper ,end, an inner tube 14flextending down into said reservoir, a closure 19 for the lower. end of said reservoir. havin% a valve seat 21, a tubular valve 20 slida 1y mounted in closure 19 having a projecting rim 27 thereon, a nozzle 23 having openings '24 and a trip rod 25, and sprin catches 26 on said reservoir for said nozz e, substantially as and for the purpose specified.

Intestimony whereof I have signed my name to this specification in the presence of 10 two subscribingwitnesses.

FRANCIS 'A. 'FLANEGIN;

\Vitnesses i I I A. L. FURLOW,

I. ApELLSWORTH. 

